Old Rhine

Old Rhine or Oude Rijn may refer to:

• Oude Rijn (Gelderland), a long former bend in river Rhine in the Dutch province of Gelderland
• Oude Rijn (Utrecht and South Holland), a branch of the Rhine delta in the Dutch provinces of Utrecht and South Holland
• Alter Rhein, the old river bed of the Alpine Rhine in St. Gallen and Vorarlberg in the Alpine Rhine Valley